2019-02-16 22:11:30 +00:00
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<?php
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namespace Friendica\Util;
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use Psr\Container\ContainerExceptionInterface;
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use Psr\Container\ContainerInterface;
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use Psr\Container\NotFoundExceptionInterface;
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use Psr\Log\LoggerInterface;
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/**
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* A class to store profiling data
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* It can handle different logging data for specific functions or global performance measures
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*
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* It stores the data as log entries (@see LoggerInterface )
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*/
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class Profiler implements ContainerInterface
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{
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/**
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* @var array The global performance array
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*/
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private $performance;
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/**
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* @var array The function specific callstack
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*/
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private $callstack;
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/**
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* @var bool True, if the Profiler is enabled
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*/
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private $enabled;
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/**
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* @var bool True, if the Profiler should measure the whole rendertime including functions
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*/
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private $rendertime;
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/**
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* @var LoggerInterface The profiler logger
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*/
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private $logger;
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/**
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* @param LoggerInterface $logger The profiler logger
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* @param bool $enabled True, if the Profiler is enabled
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* @param bool $renderTime True, if the Profiler should measure the whole rendertime including functions
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*/
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public function __construct(LoggerInterface $logger, $enabled = false, $renderTime = false)
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{
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$this->enabled = $enabled;
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$this->rendertime = $renderTime;
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$this->logger = $logger;
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2019-02-16 23:03:38 +00:00
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$this->reset();
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2019-02-16 22:11:30 +00:00
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}
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/**
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* Saves a timestamp for a value - f.e. a call
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* Necessary for profiling Friendica
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*
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* @param int $timestamp the Timestamp
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* @param string $value A value to profile
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2019-02-16 22:17:10 +00:00
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* @param string $callstack The callstack of the current profiling data
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2019-02-16 22:11:30 +00:00
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*/
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2019-02-16 22:17:10 +00:00
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public function saveTimestamp($timestamp, $value, $callstack = '')
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2019-02-16 22:11:30 +00:00
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{
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if (!$this->enabled) {
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return;
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}
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$duration = (float) (microtime(true) - $timestamp);
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if (!isset($this->performance[$value])) {
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// Prevent ugly E_NOTICE
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$this->performance[$value] = 0;
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}
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$this->performance[$value] += (float) $duration;
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$this->performance['marktime'] += (float) $duration;
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if (!isset($this->callstack[$value][$callstack])) {
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// Prevent ugly E_NOTICE
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$this->callstack[$value][$callstack] = 0;
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}
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$this->callstack[$value][$callstack] += (float) $duration;
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}
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/**
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* Resets the performance and callstack profiling
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*
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* @param bool $performance If true, reset the performance (Default true)
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* @param bool $callstack If true, reset the callstack (Default true)
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*/
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public function reset($performance = true, $callstack = true)
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{
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if ($performance) {
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2019-02-17 00:18:21 +00:00
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$this->resetPerformance();
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2019-02-16 22:11:30 +00:00
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}
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if ($callstack) {
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2019-02-17 00:18:21 +00:00
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$this->resetCallstack();
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2019-02-16 22:11:30 +00:00
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}
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}
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2019-02-17 00:18:21 +00:00
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/**
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* Resets the performance profiling data
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*/
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public function resetPerformance()
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{
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$this->performance = [];
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$this->performance['start'] = microtime(true);
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$this->performance['database'] = 0;
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$this->performance['database_write'] = 0;
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$this->performance['cache'] = 0;
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$this->performance['cache_write'] = 0;
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$this->performance['network'] = 0;
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$this->performance['file'] = 0;
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$this->performance['rendering'] = 0;
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$this->performance['parser'] = 0;
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$this->performance['marktime'] = 0;
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$this->performance['marktime'] = microtime(true);
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}
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/**
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* Resets the callstack profiling data
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*/
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public function resetCallstack()
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{
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$this->callstack = [];
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$this->callstack['database'] = [];
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$this->callstack['database_write'] = [];
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$this->callstack['cache'] = [];
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$this->callstack['cache_write'] = [];
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$this->callstack['network'] = [];
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$this->callstack['file'] = [];
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$this->callstack['rendering'] = [];
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$this->callstack['parser'] = [];
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}
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2019-02-16 22:11:30 +00:00
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/**
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* Save the current profiling data to a log entry
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*
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* @param string $message Additional message for the log
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*/
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2019-02-16 23:03:38 +00:00
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public function saveLog($message = '')
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2019-02-16 22:11:30 +00:00
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{
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// Write down the performance values into the log
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2019-02-17 00:18:21 +00:00
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if (!$this->enabled) {
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return;
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}
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$duration = microtime(true) - $this->get('start');
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$this->logger->info(
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$message,
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[
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2019-02-17 00:57:59 +00:00
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'action' => 'profiling',
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2019-02-17 00:18:21 +00:00
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'database_read' => round($this->get('database') - $this->get('database_write'), 3),
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'database_write' => round($this->get('database_write'), 3),
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'cache_read' => round($this->get('cache'), 3),
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'cache_write' => round($this->get('cache_write'), 3),
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'network_io' => round($this->get('network'), 2),
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'file_io' => round($this->get('file'), 2),
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'other_io' => round($duration - ($this->get('database')
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+ $this->get('cache') + $this->get('cache_write')
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+ $this->get('network') + $this->get('file')), 2),
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'total' => round($duration, 2)
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]
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);
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if (!$this->rendertime) {
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return;
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}
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$o = '';
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if (isset($this->callstack["database"])) {
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$o .= "\nDatabase Read:\n";
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foreach ($this->callstack["database"] as $func => $time) {
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$time = round($time, 3);
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if ($time > 0) {
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$o .= $func . ": " . $time . "\n";
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2019-02-16 22:11:30 +00:00
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}
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2019-02-17 00:18:21 +00:00
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}
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}
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if (isset($this->callstack["database_write"])) {
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$o .= "\nDatabase Write:\n";
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foreach ($this->callstack["database_write"] as $func => $time) {
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$time = round($time, 3);
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if ($time > 0) {
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$o .= $func . ": " . $time . "\n";
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2019-02-16 22:11:30 +00:00
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}
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2019-02-17 00:18:21 +00:00
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}
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}
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if (isset($this->callstack["cache"])) {
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$o .= "\nCache Read:\n";
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foreach ($this->callstack["cache"] as $func => $time) {
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$time = round($time, 3);
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if ($time > 0) {
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$o .= $func . ": " . $time . "\n";
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2019-02-16 22:11:30 +00:00
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}
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2019-02-17 00:18:21 +00:00
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}
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}
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if (isset($this->callstack["cache_write"])) {
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$o .= "\nCache Write:\n";
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foreach ($this->callstack["cache_write"] as $func => $time) {
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$time = round($time, 3);
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if ($time > 0) {
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$o .= $func . ": " . $time . "\n";
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2019-02-16 22:11:30 +00:00
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}
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2019-02-17 00:18:21 +00:00
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}
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}
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if (isset($this->callstack["network"])) {
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$o .= "\nNetwork:\n";
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foreach ($this->callstack["network"] as $func => $time) {
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$time = round($time, 3);
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if ($time > 0) {
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$o .= $func . ": " . $time . "\n";
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2019-02-16 22:11:30 +00:00
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}
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}
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}
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2019-02-17 00:57:59 +00:00
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$this->logger->info($message . ": " . $o, ['action' => 'profiling']);
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2019-02-16 22:11:30 +00:00
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}
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/**
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* Finds an entry of the container by its identifier and returns it.
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*
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* @param string $id Identifier of the entry to look for.
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*
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* @throws NotFoundExceptionInterface No entry was found for **this** identifier.
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* @throws ContainerExceptionInterface Error while retrieving the entry.
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*
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* @return int Entry.
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*/
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public function get($id)
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{
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if (!$this->has($id)) {
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return 0;
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} else {
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return $this->performance[$id];
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}
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}
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/**
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* Returns true if the container can return an entry for the given identifier.
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* Returns false otherwise.
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*
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* `has($id)` returning true does not mean that `get($id)` will not throw an exception.
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* It does however mean that `get($id)` will not throw a `NotFoundExceptionInterface`.
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*
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* @param string $id Identifier of the entry to look for.
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*
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* @return bool
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*/
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public function has($id)
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{
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return isset($this->performance[$id]);
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}
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}
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